[Full-disclosure] MIT Kerberos 5: Multiple vulnerabilities



Advisory: MIT Kerberos 5: Multiple vulnerabilities
Severity: Normal
DATE:Dec 7,2007
Vulnerable:
ALL
Vendor:
MIT
I.Synopsis
Several vulnerabilites have been found in MIT Kerberos 5.

II.DETAILS:
----------
Background
MIT Kerberos 5 is a suite of applications that implement the Kerberos
network protocol.

Description

A uninitialized vulnerability (CVE-2007-5894)in function reply() in
ftpd.c.
A dereferencing vulnerability(CVE-2007-5901) in gssapi lib in function
gss_indicate_mechs(mi
norStatus, mechSet) in g_initialize.c and a integer overflow
vunerability(CVE-2007-5902)
in rpc lib in function svcauth_gss_get_principal in svc_auth_gss.c. A
double free vulnerability(CVE-2007-5971)
in function gss_krb5int_make_seal_token_v3 in k5sealv3.c and another
double free vulnerability(CVE-2007-5972)
in function krb5_def_store_mkey in lib/kdb/kdb_default.c.

Impact

Reading uninitialized variables can result in unpredictable behavior,
crashes, or security holes.
Dereferencing,integer overflow and double free may cause instability and
potentially crash.

References
==========

[ 1 ] CVE-2007-5894
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5894
[ 2 ] CVE-2007-5901
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5901
[ 3 ] CVE-2007-5902
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5902
[ 4 ] CVE-2007-5971
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5971
[ 5 ] CVE-2007-5972
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5972


III.CREDIT:
----------
Venustech AD-LAB discovery this vuln. Thank to all Venustech AD-Lab
guys.

V.DISCLAIMS:
-----------

The information in this bulletin is provided "AS IS" without warranty of
any
kind. In no event shall we be liable for any damages whatsoever
including direct,
indirect, incidental, consequential, loss of business profits or special
damages.

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VENUSTECH INFORMATION TECHNOLOGY CO.,LTD(http://www.venustech.com.cn)

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